{"product_id":"esp8266-esp-12e-esp-12f-esp-12s-serial-wifi-module-802-11-bgn-at-commands","title":"ESP8266 Serial WiFi Module — ESP-12E \/ ESP-12F \/ ESP-12S, 802.11 b\/g\/n, AT Commands","description":"\u003ch2\u003eESP8266 Serial WiFi Module — ESP-12E \/ ESP-12F \/ ESP-12S, 802.11 b\/g\/n, AT Commands\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eESP8266 ESP-12 series\u003c\/strong\u003e are compact, high-integration WiFi modules built on the Espressif ESP8266EX SoC. With 4MB flash, 11 GPIO pins, and support for AT commands via UART or full standalone programming via Arduino IDE \/ MicroPython, they are the most versatile ESP8266 form factor for IoT nodes, wireless sensor networks, and Arduino WiFi expansion.\u003c\/p\u003e\u003ch3\u003eVariant Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVariant\u003c\/th\u003e\n\u003cth\u003eAntenna\u003c\/th\u003e\n\u003cth\u003eShield\u003c\/th\u003e\n\u003cth\u003eKey Difference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP-12E\u003c\/td\u003e\n\u003ctd\u003ePCB trace\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003ctd\u003eStandard, most common\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP-12F\u003c\/td\u003e\n\u003ctd\u003ePCB trace (optimized)\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003ctd\u003eImproved RF performance vs ESP-12E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESP-12S\u003c\/td\u003e\n\u003ctd\u003ePCB trace\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003ctd\u003eSimplified pinout, FCC\/CE certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoC\u003c\/td\u003e\n\u003ctd\u003eEspressif ESP8266EX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi Standard\u003c\/td\u003e\n\u003ctd\u003e802.11 b\/g\/n, 2.4GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e4MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Pins\u003c\/td\u003e\n\u003ctd\u003e11 (including SPI, I²C, UART, ADC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna\u003c\/td\u003e\n\u003ctd\u003ePCB trace (onboard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity\u003c\/td\u003e\n\u003ctd\u003eWPA \/ WPA2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming\u003c\/td\u003e\n\u003ctd\u003eAT commands (UART) or Arduino IDE \/ MicroPython\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose ESP-12 Series?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003e4MB flash\u003c\/strong\u003e — sufficient for full Arduino sketches and OTA updates\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e11 GPIO pins\u003c\/strong\u003e — more I\/O than ESP-01, suitable for complex sensor nodes\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMetal shield\u003c\/strong\u003e — better EMI shielding than bare modules\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAT command support\u003c\/strong\u003e — use as WiFi co-processor with Arduino Uno\/Mega\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eArduino IDE compatible\u003c\/strong\u003e — program standalone with ESP8266 board package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino WiFi expansion via AT commands\u003c\/li\u003e\n\u003cli\u003eStandalone IoT sensor node (temperature, humidity, CO2)\u003c\/li\u003e\n\u003cli\u003eHTTP \/ MQTT client for cloud data upload\u003c\/li\u003e\n\u003cli\u003eWiFi-controlled relay and smart switch\u003c\/li\u003e\n\u003cli\u003eRemote sensor monitoring over WiFi\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × ESP8266 WiFi Module (ESP-12E, ESP-12F, or ESP-12S, as selected)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"ESP12S","offer_id":46991435563243,"sku":"14:351074#ESP12S","price":7.8,"currency_code":"USD","in_stock":true},{"title":"ESP12F","offer_id":46991435596011,"sku":"14:350852#ESP12F","price":7.4,"currency_code":"USD","in_stock":true},{"title":"ESP12E","offer_id":46991435628779,"sku":"14:1202#ESP12E","price":7.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/esp8266-serial-wifi-module-esp-12e-esp-12f-esp-12s.webp?v=1761880615","url":"https:\/\/keszoox.com\/products\/esp8266-esp-12e-esp-12f-esp-12s-serial-wifi-module-802-11-bgn-at-commands","provider":"Keszoox","version":"1.0","type":"link"}